#37A3DA#37A3DA

#37A3DA is a light, vivid cyan. Relative luminance 0.321; OKLCH L 67.9% C 0.125 H 235.5°. Best body text is #000000 at 7.41:1 contrast (WCAG AA passes).

Color values

HEX#37A3DA
RGBrgb(55, 163, 218)
HSLhsl(200, 69%, 54%)
HSVhsv(200, 75%, 85%)
CMYKcmyk(74.8%, 25.2%, 0%, 14.5%)
CIE-LABlab(63.40, -12.24, -36.59)
CIE-LCHlch(63.40, 38.59, 251.51°)
OKLaboklab(67.88% -0.0709 -0.1032)
OKLCHoklch(67.88% 0.125 235.5)
XYZxyz(27.3226, 32.0653, 71.0653)
Luminance0.3207 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37A3DA #DA6E37
analogous
#37DABF #37A3DA #3751DA
triadic
#37A3DA #DA37A3 #A3DA37
tetradic
#37A3DA #BF37DA #DA6E37 #51DA37
square
#37A3DA #BF37DA #DA6E37 #51DA37
split-complementary
#37A3DA #DA3751 #DABF37
monochromatic
#185C7F #2182B3 #37A3DA #6BBBE4 #9ED3ED

Accessibility & contrast

On white

2.83
#37A3DA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.41
#37A3DA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A3DA
7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37A3DA#FFFFFF#000000##000000
##37A3DA1.002.837.417.41
#FFFFFF2.831.0021.0021.00
#0000007.4121.001.001.00
##0000007.4121.001.001.00

Color blindness preview

Protanopia (red-blind)
#88A2DD
Deuteranopia (green-blind)
#7293D9
Tritanopia (blue-blind)
#00B1B6
Achromatopsia (no color)
#999999

Design tokens & code

CSS
--color: #37a3da;
/* rgb */ color: rgb(55, 163, 218);
/* oklch */ color: oklch(67.9% 0.125 235.5);
Tailwind
colors: {
  custom: {
    50: '#84bee5',
    500: '#37a3da',
    950: '#000000',
  },
}
SCSS
$custom: #37a3da;
$custom-light: #84bee5;
$custom-dark: #000000;
JSON
{
  "hex": "#37a3da",
  "rgb": {
    "r": 55,
    "g": 163,
    "b": 218
  },
  "hsl": {
    "h": 200.245,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.67885,
    "c": 0.12519,
    "h": 235.5
  },
  "luminance": 0.32069
}

Semantic roles & 50–950 ramp

primary
#37A3DA
secondary
#D9AB93
accent
#773CEC
background
#F8FBFE
surface
#F0F6FC
border
#CBD0D5
text
#0C1216
muted
#7D8184

Preview Lab

Preview with #37A3DA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#37A3DA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva